Chaeles hofstettee



(No Model.)

C. HOFSTETTER, Jr.

GAR HEATER.

Patented Aug. 16, 1887.

C/m/enr,

N. PETERS. Pnmu-lixhagrnphr. waamngmn. n.6.

ivi-Ten STATES FFICE@ CHARLES HOFSTETTER, JR., OF IEORIA, ILLINOIS, ASSIGNOR OF TWO-TIIIRDS TO FRANK IIALL AND ADOLPIIUS E. IIALL, BO'III OF SAME PLACE.

CAR-H EATER.

SPECIFICATION forming part of Letters Patent No. 368,211, dated August 16, 18237l (No model.)

To all whom it may concern:

Be it known that I, Guantes Hors'rn'rrnu., Jr., of Peoria, in the county of Peoria, State of Illinois, have invented au Improved Car- IIeater; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to improvements i n carheatcrs, and is fully described and explained in this specification, and illustrated in the aeeompanying drawings, in which- Figure lis a sectional elevation through in Fig. 2 of one end ol" a car provided with my heating apparatus. Fig. 2 is a sectional plan view of the same at g/ 7/ in Fig. I.

P represents the car-Hoor; IV, the front end thereof; N, the car-platform; M, one of the supporting-wheels, and L the axle thereof.

The air-conduit A has a portion of its length formed in the spiral eoil I3, which is located within the furnace-wall E, and said air-conduit terminates in the perforated pipe O, lying upon the lloor of the car or laid in a suitable groove therein, and preferably extending;` along the center of the car-floor I). Below the coil B is the furnace-grate E@ and about the furnacewall E is the envelope I), forming an airchamber between itself and said wall.

D' represents the door for the insertion of the fuel.

F is a fan-blower secured to the under side of the car-floor and driven by power communicated thereto by means of the pulley J, located on the shaft L, its own pulley II and a belt, K, passing about the same. From said fan-blower extends the air-conduit A, so that when the car is in motion there is forced through said conduit into the cara steady and strong stream ol" air thoroughly warmed by its passage through the hot coil B.

To obviate the necessity of supplying the conduit A with cold air, which, when the temperature is very low, would waste much heat, I secure the conical plate G over the open side of the fan-blower F and have the pipe G; communicate therefrom to the air-chamber between the furnace-wall and its envelope or jacket. In this way the air for supplying the fan and conduit comes from said chamber and is partially warmed prior to its admission to said conduit.

The car to which l have especially adapted my heater is the ordinary tram or horse ear; but I do not restrict myself thereto, as it is equally applicable to other cars, or, with suitable changes, to buildings.

The spiral coil Il, I usually make in a flattened or elliptical form, as indicated in Fig. 2, in order that there may be passage-room between the front of the furnace and the platform-shield or dash-board.

In the drawings, my furnace is shown as located upon the front platform, for the convenience and comfort of the driver; but it can be placed beneath the car or elsewhere.

From the pipe A extends the small pipe or tube R up to the top of the furnace, where it terminates just below the lower end of the smoke-llue E. Said upper extremity of the tube R being upwardly curved, a portion of the air stream from the pipe A furnishes draft to the fire. The valve R controls the amount of air entering said tube, and hence the draft. The coil I3, through which the air passes from the fan to the car, forms the lire-pot of the heater, thus insuring rapid and complete heating ofthe air as it passes through the coil.

llVhat I claim as my invention, and lfor which I desire Letters Iatent, is as follows, to wit:

1l.. In a earheatcr, the combination, with a conlbnstion-chamber and a shell surroumling` it and separated from it by a suitable air-space, of an air-heating coil lying within the combustion-chamber and communicating with the body of the car, a fan-chamber communicating with said air-space and said air-heating` coil, and a fan lying within said chamber and adapted by its rotation to draw air from said air-space and force it through said coil, subA stantially as and for the purpose set forth.

2. In a car-heater, the combination of the furnace, the air-heating coil located therein, the l'an communicating with said coil, the airinlet pipe, the smoke-Hue, and the supplemenial pipe comnumieating with the air-inlet pipe and the smoke-Hue, substantially as described.

In testimony that I elaim the foregoing invention I have hereunto set my hand this 15th day of June, in the year 1886.

CHARLES IIOFS'IETTER, JR.

Vitnesses:

WILLIAM J. HALL, H. W. WnLLs. 

